diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128/s_dmull.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_dmull.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_dmull.c b/sysdeps/ieee754/ldbl-128/s_dmull.c new file mode 100644 index 0000000000..d32c4284e0 --- /dev/null +++ b/sysdeps/ieee754/ldbl-128/s_dmull.c @@ -0,0 +1,37 @@ +/* Multiply long double (ldbl-128) values, narrowing the result to double. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#define f32xmulf64x __hide_f32xmulf64x +#define f32xmulf128 __hide_f32xmulf128 +#define f64mulf64x __hide_f64mulf64x +#define f64mulf128 __hide_f64mulf128 +#include <math.h> +#undef f32xmulf64x +#undef f32xmulf128 +#undef f64mulf64x +#undef f64mulf128 + +#include <math-narrow.h> + +double +__dmull (_Float128 x, _Float128 y) +{ + NARROW_MUL_ROUND_TO_ODD (x, y, double, union ieee854_long_double, l, + mantissa3); +} +libm_alias_double_ldouble (mul) |